Vu, A., Q. Le, N. Nguyen, L. Pham, C. Seilder, and B. Phung. “Wastewater Quality of the Agricultural Region (vegetables - Flowers - Fruit Plants) at Phu Dien and Tay Tuu Wards (Hanoi)”. Science and Technology Development Journal, Vol. 17, no. 4, Dec. 2014, pp. 13-21, doi:https://doi.org/10.32508/stdj.v17i4.1534.